Quote: Originally Posted by fireberd
I had that occasionally when I had a Striker 7.1 installed. It could just be the point where the sound is initialized in the startup string.
Uninstall the Striker 7.1 in the Device Manager, then restart the PC and when Windows starts it will detect and reinstall the device. Many times this puts it in a different point in the startup which may fix the problem.
I now have a SoundBlaster and it too will do that sometimes. Must be the way Windows 7 initializes.
What this is, usually, is the DAC chip on the soundcard being in a random state immediately after power on. When the PCI interface is initialized the DAC is set to 1/2 value (so called 0) which causes a voltage spike on the output to the speakers... BANG
This is usually an indication of either poor drivers
not muting the output during initialization or a badly designed DAC that doesn't reset itself at power up.
Either way it is an annoyance and, depending on your sound system it could be a tweeter killer... they really don't like big voltage spikes.